Ultrathin mesoporous Co3O4 nanosheets-constructed hierarchical clusters as high rate capability and long life anode materials for lithium-ion batteries

被引：32

作者：

Wu, Shengming ^{[1
]}

Xia, Tian ^{[1
]}

Wang, Jingping ^{[2
]}

Lu, Feifei ^{[1
]}

Xu, Chunbo ^{[2
]}

Zhang, Xianfa ^{[1
]}

Huo, Lihua ^{[1
]}

Zhao, Hui ^{[1
]}

机构：

[1] Heilongjiang Univ, Sch Chem Chem Engn & Mat, Minist Educ, Key Lab Funct Inorgan Mat Chem, Harbin 150080, Heilongjiang, Peoples R China

[2] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Minist Educ, Key Lab Supertight Mat & Surface Technol, Harbin 150001, Heilongjiang, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2017年 / 406卷

关键词：

Oxides; Nanostructures; Lithium-ion batteries; Anode materials; Electrochemical performance; TEMPLATE-FREE SYNTHESIS; HIGH-PERFORMANCE ANODES; BINDER-FREE ANODES; ELECTRODE MATERIALS; FACILE SYNTHESIS; ELECTROCHEMICAL PERFORMANCE; CONTROLLABLE SYNTHESIS; STORAGE PROPERTIES; CARBON NANOTUBES; ENERGY-STORAGE;

D O I：

10.1016/j.apsusc.2017.02.107

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Herein, Ultrathin mesoporous Co3O4 nanosheets-constructed hierarchical clusters (UMCN-HCs) have been successfully synthesized via a facile hydrothermal method followed by a subsequent thermolysis treatment at 600 degrees C in air. The products consist of cluster-like Co3O4 microarchitectures, which are assembled by numerous ultrathin mesoporous Co3O4 nanosheets. When tested as anode materials for lithium-ion batteries, UMCN-HCs deliver a high reversible capacity of 1067 mAh g(-1) at a current density of 100 mA g(-1) after 100 cycles. Even at 2 A g(-1), a stable capacity as high as 507 mAh g(-1) can be achieved after 500 cycles. The high reversible capacity, excellent cycling stability, and good rate capability of UMCN-HCs may be attributed to their mesoporous sheet-like nanostructure. The sheet-layered structure of UMCN-HCs may buffer the volume change during the lithiation-delithiation process, and the mesoporous characteristic make lithium-ion transfer more easily at the interface between the active electrode and the electrolyte. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：46 / 55

页数：10

共 77 条

[1] Building better batteries [J].